The 3rd term of an A.P is 1 /5 and 5th term is 1 /3 then the 1st term is
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a+2d=1/5 ×2 .....1
a+4d=1/3
2a+4d=1/5
a+4d=1/3 (subtracting)
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a=1/15
thus,first term is 1/15
a+4d=1/3
2a+4d=1/5
a+4d=1/3 (subtracting)
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a=1/15
thus,first term is 1/15
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